Sifting through countless of stocks in the Interactive Media & Services industry can be tedious, and sometimes two stocks are just too similar to judge which is the better investment. If you’re on the fence about investing in Bilibili Inc., CoStar Group or Inc. because you’re not sure how they measure up, it’s important to compare them on a few factors before making your decision.

Read on to learn how Bilibili Inc., CoStar Group and Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Bilibili Inc., CoStar Group and Inc.

Bilibili Inc. provides online entertainment services for the young generations in the People’s Republic of China. It offers a range of digital content, including professional user generated videos (PUGV), mobile games, and value-added services, such as live broadcasting, occupationally generated videos, audio drama on Maoer, comics on Bilibili Comic, PUGV content in fan charging program and premium courses, and Bilibili premium courses and community-based avatar decoration. The company also provides advertising services; and IP derivatives and other services. In addition, it engages in the business and technology development activities; e-commerce business; and video, comics, and game distribution activities. Bilibili Inc. was founded in 2009 and is headquartered in Shanghai, the People's Republic of China.

CoStar Group, Inc. provides information, analytics, and online marketplace services to real estate and related business communities in the United States, Australia, Canada, Europe, the Asia Pacific, and Latin America. It offers CoStar Property that provides inventory of office, industrial, retail, multifamily, hospitality, and student housing, and land properties; CoStar Leasing, a data on lease transactions and tools to manage user-entered lease data; CoStar Sales, a database of commercial real estate sales transactions; CoStar Owners provides detailed portfolio information; CoStar Markets to view and report on market and submarket trends; and CoStar Tenant that provides tenant information. The company also provides hospitality benchmarking that allows hotels to measure performance against competitors; Debt Solutions, a tool for lenders to manage loan portfolios and risk; and real estate and lease management technology solutions, such as lease administration, lease accounting, and transaction management services. In addition, it offers Apartamentos.com, an apartment marketing sites; LoopNet.com, a commercial property marketing sites; Homes.com, a home for sale listings site; Ten-X, an online auction platform for commercial real estate; Land.com, a marketplace for rural land sales; and BizBuySell.com, a marketplace for operating businesses and franchises for sale. It serves sales, leasing, and mortgage brokers; property, real estate investment trust, insurance companies, and asset managers; and government agencies, property owners, mortgage-backed security issuers, appraisers, design and construction professionals, pension fund managers, real estate developers, reporters tenant vendors, bankers, building services vendors, mortgage bankers, communications providers, retailers, institutional advisors, hospitality owners, investors, and real estate agents. The company was founded in 1986 and is headquartered in Arlington, Virginia.

Latest Interactive Media & Services and Bilibili Inc., CoStar Group, Inc. Stock News

As of September 2, 2026, Bilibili Inc. had a $6.5 billion market capitalization, compared to the Interactive Media & Services median of $652.8 million. Bilibili Inc.’s stock is down 37.9% in 2026, down 8.9% in the previous five trading days and down 31.06% in the past year.

Currently, Bilibili Inc.’s price-earnings ratio is 30.5. Bilibili Inc.’s trailing 12-month revenue is $4.6 billion with a 4.9% net profit margin. Year-over-year quarterly sales growth most recently was 14.1%. Analysts expect adjusted earnings to reach $1.013 per share for the current fiscal year. Bilibili Inc. does not currently pay a dividend.

As of September 2, 2026, CoStar Group, Inc. had a $12.7 billion market cap, putting it in the 81st percentile of all stocks. CoStar Group, Inc.’s stock is down 52.2% in 2026, up 2.5% in the previous five trading days and down 64.53% in the past year.

Currently, CoStar Group, Inc.’s price-earnings ratio is 176.6. CoStar Group, Inc.’s trailing 12-month revenue is $3.6 billion with a 2.1% net profit margin. Year-over-year quarterly sales growth most recently was 18.4%. Analysts expect adjusted earnings to reach $1.363 per share for the current fiscal year. CoStar Group, Inc. does not currently pay a dividend.

How We Compare Bilibili Inc., CoStar Group and Inc. Stock Grades

Stock evaluation requires access to huge amounts of data and the knowledge and time to sift through it all, make sense of financial ratios, read income statements and analyze recent stock movements. AAII created A+ Investor, a robust data suite that condenses data research in an actionable and customizable way suitable for investors of all knowledge levels, to help investors streamline and work through such data.

AAII’s proprietary stock grades come with A+ Investor. These offer intuitive A‐F grades for each of five key investing factors: value, growth, momentum, earnings estimate revisions and quality. Here, we’ll take a closer look at Bilibili Inc., CoStar Group and Inc.’s stock grades to see how they measure up against one another.

Learn more about A+ Investor here!

Sign Up to Receive a Free Special Report Showing How A+ Grades Can Help You Make Smarter Investment Decisions

Bilibili Inc., CoStar Group and Inc. Growth Grades

Company	Ticker	Growth
Bilibili Inc.	BILI	C
CoStar Group, Inc.	CSGP	A

The foundation of growth investing is seeking out stocks of companies exhibiting strong, consistent and prolonged growth that is expected to continue into the future.

In order to compute the growth score and assign it a letter grade, the percentile ranks for each of three components‐consistency of annual sales growth, five-year sales growth rankings adjusted for extreme levels, and consistency of positive annual cash from operations‐must be determined. These three rank figures are added together, and the sum is ranked against the entire stock universe to arrive at a company’s Growth Score to create an equal distribution of grades.

The companies in the bottom 20% of the stock universe receive Growth Grades of F, considered to be very weak, while those in the top 20% receive A grades, which are considered very strong.

Bilibili Inc. has a Growth Score of 56, which is Average. CoStar Group, Inc. has a Growth Score of 89, which is Very Strong.

The Growth Grade Winner: CoStar Group, Inc.

As you can clearly see from the Growth Grade breakdown above, CoStar Group, Inc. has a more attractive growth grade than Bilibili Inc.. For investors who focus solely on how a company is growing relative to other companies in the same industry, CoStar Group, Inc. could be a good stock to add to their portfolio. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Bilibili Inc., CoStar Group and Inc.’s Momentum Grades

Company	Ticker	Momentum
Bilibili Inc.	BILI	F
CoStar Group, Inc.	CSGP	F

Momentum grades help to uncover stocks experiencing anomalously high rates of return; research finds that stocks with high relative levels of momentum tend to outperform, whereas those with low levels of momentum tend to continue underperforming. Momentum is based on the price change of a stock over a specified period relative to all other stocks.

Typically, AAII looks at the weighted relative strength over the trailing four quarters. The weighted four-quarter relative strength rank is the relative price change for each of the past four quarters. The most recent quarterly price change is given a weight of 40% and each of the three previous quarters are given a weighting of 20%.

Bilibili Inc. has a Momentum Score of 20, which is Very Weak. CoStar Group, Inc. has a Momentum Score of 10, which is Very Weak.

The Momentum Stock Winner: No Clear Winner

Neither Bilibili Inc., CoStar Group or Inc. has a strong enough Momentum Grade to be considered a “winner.” Investors considering these companies should do additional due diligence and research to see if either could be a good addition to their portfolios. It’s important to look at a wide range of financial metrics in order to determine if Bilibili Inc., CoStar Group or Inc. is the better investment when it comes to momentum.

Bilibili Inc., CoStar Group and Inc.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Bilibili Inc.	BILI	D
CoStar Group, Inc.	CSGP	B

Earnings estimate revisions scores consider the magnitude of a company’s earnings surprise in its last two reported fiscal quarters. Often, positive surprises beget further positive surprises‐or at least continued sales growth (the exact opposite is generally true, too).

Estimate revisions offer an indication of what analysts are thinking about the short-term prospects of a firm. Estimate revisions are based on the statistical significance of a firm’s last two quarterly earnings surprises and the percentage change in its consensus estimate for the current fiscal year over the past month and past three months.

Bilibili Inc. has a Earnings Estimate Score of 36, which is Negative. CoStar Group, Inc. has a Earnings Estimate Score of 65, which is Positive.

The Earnings Estimate Revisions Grade Winner: CoStar Group, Inc.

As you can clearly see from the Earnings Estimate Revisions Grade breakdown above, CoStar Group, Inc. has a better Earnings Estimate Revisions Grade than Bilibili Inc.. For those who are specifically looking for companies with better short-term prospects when compared to other companies in the same industry, CoStar Group, Inc. could be a good stock to invest in. However, it’s important to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Other Bilibili Inc., CoStar Group and Inc. Grades

In addition to Estimate Revisions, Growth and Momentum, A+ Investor also provides grades for Value and Quality.

Successful stock investing involves buying low and selling high, so stock valuation is an important consideration for stock selection. Buying stocks that are going to go up typically means buying stocks that are undervalued in the first place, although momentum investors may argue that point.

AAII’s A+ Investor Quality Grade comes from the ranking of key metrics. Specifically, the quality grade is the percentile rank of the composite of return on assets (ROA), return on invested capital (ROIC), gross profit relative to assets, buyback yield, change in total liabilities to assets, accruals, Z double prime bankruptcy risk (Z) score and F-Score.

These 2 key factors, when combined with the above, provide a holistic view into a particular stock. Further, by joining A+ Investor you can see whether Bilibili Inc., CoStar Group and Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Bilibili Inc., CoStar Group or Inc. Stock?

Overall, Bilibili Inc. stock has a Growth Score of 56, Momentum Score of 20 and Estimate Revisions Score of 36.

CoStar Group, Inc. stock has a Growth Score of 89, Momentum Score of 10 and Estimate Revisions Score of 65.

Comparing Bilibili Inc., CoStar Group and Inc.’s grades, scores and metrics can act as a solid basis to determine whether they may be a good investment or not. You’ll also want to look at your portfolio’s asset allocation as well as your risk tolerance and financial goals to see if either of these stocks would make a good fit for you. AAII can help you figure out which investments align with your individual needs and preferences.

Investors are encouraged to do their own due diligence and research. In this way, individuals can effectively become managers of their own assets‐without having to rely on others for financial independence. You can count on AAII for timeless articles on financial planning and stock-picking, unbiased research and actionable analysis.

A+ Investor adds to our qualitative teaching with a powerful data suite to help you whittle down investment choices to find stocks, exchange-traded funds (ETFs) or mutual funds that meet your needs.

AAII Disclaimer

We make no representations or warranties that any investor will, or is likely to, achieve profits similar to those shown, because past, hypothetical or simulated performance is not necessarily indicative of future results. Before making an investment decision, you should consider your circumstances and whether the information on our content is applicable to your situation. This information was prepared in good faith, and we accept no liability for any errors or omissions. The full disclaimer can be read here.